<h3>1.描述</h3>
<p>activeStep接口测试</p>
<h3>2.示例</h3>
<p>(2.1)activeStep动态变更</p>
<ti-steps [steps]="steps" [clickable]="clickable" [(activeStep)]="activeStep"></ti-steps>
<p>当前选中项:{{activeStep.label}}</p>
<br />

<button (click)="jump()">点击跳转第2步</button>
